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  1. C

    Flywheel magnets

    I have a 1987 Mercury 70 hp outboard. All the outer magnets have come off the flywheel and fallen onto the top part of the motor. I removed the flywheel. Can I just replace the magnets or do I need to get a whole new flywheel? How are the magnets attached anyway?<br />Thanks for your...
  2. C

    pinging noise in lower unit

    I have a used 1987 Mercury 70 HP outboard with a noise coming out of my gearcase. I just tried it out and at times heard a loud rattling noise, like pinging from engine knock. The first time occured after I had slowed down and then speeded back up. Later it went away after restarting the motor...
  3. C

    Overheating 70 hp outboards

    I recently had two 1987 Mercury 70 HP outboard installed on my boat. My mechanic installed new thermotstats, but removed them because the alarms go off while running with the rinsing earmuff on. The alarms also go off while running a few minutes at highest rpms on the water. One alarm still...
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